Baryshnikov/L.A. Times Thursday, March 6, 1997 Stretching His Legs Creatively At 49, Mikhail Baryshnikov works hard to pursue the rigors of dance, and the best part is he can now do it on his own terms. By ELIZABETH ZIMMER, Special to The Times NEW YORK--A lot of guys who work for 30 years, reach the pinnacle of their profession, achieve icon status, make pots of money and sustain disabling ...